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pcaouolte
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Joined: Dec 27, 2006
Posts: 998
Location: South Lincs, UK.
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 Posted: Wed Dec 03, 2008 2:16 pm Post subject: |
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Whatever the problem is with Partridge Lane, "Duke's Rd" to the North of it seems to have the same issue. Google maps only travels along these roads if navigating to (or via) a point that is actually on the road. You can see this by moving the A & B pointers about and watching the route recalculate.
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Paul |
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C2k3
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Joined: Apr 21, 2004
Posts: 23
Location: UK
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| Posted: Wed Dec 03, 2008 2:20 pm Post subject: |
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| Oldboy wrote: |
In which case it shouldn't let you travel VIA it. 
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OK, so it lets me travel by car to it, and away from it (which I guess is all 'via' means), but won't let me drive straight through it.
All I can think now is that it's something like 'residents cars only' - that would explain it, at least. |
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pcaouolte
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Joined: Dec 27, 2006
Posts: 998
Location: South Lincs, UK.
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| Posted: Wed Dec 03, 2008 2:27 pm Post subject: |
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Whatever the problem is with Partridge Lane, "Duke's Rd" to the North of it seems to have the same issue. Google maps only travels along these roads if navigating to (or via) a point that is actually on the road. You can see this by moving the A & B pointers about and watching the route recalculate.
Both roads have the same line width on the google map and both dissapear at the same time when you zoom out. Duke's Rd appears on the sattelite image to be little more than a cart track in places. Possibly the section of Partridge Lane where the problem occurs has the wrong size/type classification.
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C2k3
Occasional Visitor
Joined: Apr 21, 2004
Posts: 23
Location: UK
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| Posted: Wed Dec 03, 2008 2:50 pm Post subject: |
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| pcaouolte wrote: | Whatever the problem is with Partridge Lane, "Duke's Rd" to the North of it seems to have the same issue. Google maps only travels along these roads if navigating to (or via) a point that is actually on the road. You can see this by moving the A & B pointers about and watching the route recalculate.
Both roads have the same line width on the google map and both dissapear at the same time when you zoom out. Duke's Rd appears on the sattelite image to be little more than a cart track in places. Possibly the section of Partridge Lane where the problem occurs has the wrong size/type classification. |
I think you're spot on. Dukes Rd is certainly (for the most part) a single track road, in fact I suspect the surface is also only suitable for farm vehicles (I think I walked up there once). It is certainly nothing like Partridge Lane, where on the sat image there is no narrowing of the road there at all, even though it is drawn on the map to suggest it does.
So Dukes Rd mapping is correct, and Partridge Lane is wrongly classified as a single track road......or something very similar. Makes me wonder what TT does in large parts of Devon and Cornwall - I shall go have a look! |
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Oldboy
Pocket GPS Moderator
Joined: Dec 08, 2004
Posts: 10641
Location: Suffolk, UK
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| Posted: Wed Dec 03, 2008 3:14 pm Post subject: |
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| C2k3 wrote: | | Oldboy wrote: |
In which case it shouldn't let you travel VIA it. |
OK, so it lets me travel by car to it, and away from it (which I guess is all 'via' means), but won't let me drive straight through it. |
I can plan a route with a VIA in the middle of that section, and it works OK. 
| C2k3 wrote: | | All I can think now is that it's something like 'residents cars only' - that would explain it, at least. |
In which case it would be marked as a pink dashed road. 
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Richard
TT 910 V7.903: Europe Map v1045
TT Via 135 App 12.075: Europe Map v1120 |
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Oldboy
Pocket GPS Moderator
Joined: Dec 08, 2004
Posts: 10641
Location: Suffolk, UK
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| Posted: Wed Dec 03, 2008 3:18 pm Post subject: |
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| pcaouolte wrote: | | Whatever the problem is with Partridge Lane, "Duke's Rd" to the North of it seems to have the same issue. |
On the TT Map the greater part of Duke's Rd is shown as 'pink lined', and as such it will not navigate that way.
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Richard
TT 910 V7.903: Europe Map v1045
TT Via 135 App 12.075: Europe Map v1120 |
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Mick_1959
Lifetime Member
Joined: Sep 24, 2007
Posts: 247
Location: Cambridgeshire
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| Posted: Wed Dec 03, 2008 4:51 pm Post subject: |
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I think the problem may be how TomTom see's the junction of the lane (unamed), with Partridge lane at start of journey.
If I plan route from north or on the junction, my 920 sends me on the long route, but if I start from south of the junction, it travels the short route.
Whatever the problem, it is most odd
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Mick
Go 1005 in need of resuscitation
GO 950 Dead,
GO 920 Dead |
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C2k3
Occasional Visitor
Joined: Apr 21, 2004
Posts: 23
Location: UK
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| Posted: Wed Dec 03, 2008 5:01 pm Post subject: |
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| Mick_1959 wrote: | I think the problem may be how TomTom see's the junction of the lane (unamed), with Partridge lane at start of journey.
If I plan route from north or on the junction, my 920 sends me on the long route, but if I start from south of the junction, it travels the short route.
Whatever the problem, it is most odd |
I had hoped it was something simple like that, correctable by myself, but it works in both directions!
Anyone know what classifications of roads TT and Google Maps actually use?
1. Motorways
2. Dual Carriageways
3. A roads
4. B Roads
5. ?
6. ?
7. ? |
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